You need a Cat5 LAN patch cable, they are available in various lengths from a short length 60cm (1 ft) to several meters long.
Use this cable to connect the DSL modem to the Internet/WAN port on the router.

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Plug one end of a phone cord or cable into the
modem, and plug the other end into the wall jack. (DSL users: Do not use
a DSL filter on the phone line.)

Plug one end of an Ethernet cable into the modem, and plug the other end into the wide area network (WAN) port on the router.

Plug the router into an electrical outlet.

Plug one end of an Ethernet cable into the local
area network (LAN) port on the router, and plug the other end into the
networking port on the computer that you want to connect to the
Internet. (If you are connecting wirelessly, skip this step.)

Start (or restart) the computer.

Open the Connect to the Internet wizard by clicking the Start button , clicking Control Panel, clicking Network and Internet, clicking Network and Sharing Center, clicking Set up a connection or network, and then clicking Connect to the Internet.

Follow this steps
1. Connect the provided power adapter from the gateway's POWER port to an electrical outlet. The POWER light on the front of the gateway should be green.
2. Connect the provided gray phone cable from the gateway's PHONE LINE port to the DSL filter jack
labeled DSL/HPNA.
3. Connect the yellow Ethernet cable provided with the gateway from the LOCAL ETHERNET port on the gateway to your computer's Ethernet port
With your computer completely started, verify the POWER and ETHERNET indicator lights on the front of the 2Wire gateway are green. If they are not, see "Understanding the Indicator Lights" on page 15. The INTERNET indicator light will not turn green until the gateway software has been installed and an Internet connection has been established.

Ensure that your AT&T DSL
self-installation kit is complete. At minimum, it should contain a DSL
modem, an AC adapter, an Ethernet cable, a telephone cable, several
telephone filters and an installation CD.

Install the telephone filters on each telephone jack that you
have a phone plugged into. Install a dual phone adapter on the jack
closest to your computer if you have an answering or fax machine,
telephone or analog modem in the same room. Then plug your telephone
equipment into the filters. Connect the telephone cable that was
provided with your installation kit into an unfiltered telephone jack.

Insert the installation CD into your CD-ROM drive. If the
installation program does not start automatically, click Start > Run
> and browse to the CD-ROM drive directory to find the installation
file.

Connect the telephone cable that is attached to the
unfiltered wall jack to the back of the DSL modem. Connect the Ethernet
cable to the back of the modem and to the Ethernet network interface
card port on the back of your computer. Connect the AC adapter to the
back of the modem and plug it into an electrical outlet. Power the modem
on.

Check the modem lights. There should be at least two lights
lit. These will have labels such as "Power" and "Ethernet." However,
these labels may differ depending on the model of modem you received in
your installation kit.

Complete the software installation. Enter your chosen
username and password when prompted. Check your modem to see if the
light labeled "DSL" or "Internet" is lit. Open a web browser window to
see if your DSL service has been successfully installed.

Step 1 Ensure that your AT&TDSL self-installation kit is complete. At minimum, it should contain aDSL modem, an AC adapter, an Ethernet cable, a telephone cable, severaltelephone filters and an installation CD.

Step 2 Installthe telephone filters on each telephone jack that you have a phoneplugged into. Install a dual phone adapter on the jack closest to yourcomputer if you have an answering or fax machine, telephone or analogmodem in the same room. Then plug your telephone equipment into thefilters. Connect the telephone cable that was provided with yourinstallation kit into an unfiltered telephone jack.

Step 4 Connectthe telephone cable that is attached to the unfiltered wall jack to theback of the DSL modem. Connect the Ethernet cable to the back of themodem and to the Ethernet network interface card port on the back ofyour computer. Connect the AC adapter to the back of the modem and plugit into an electrical outlet. Power the modem on.

Step 5 Checkthe modem lights. There should be at least two lights lit. These willhave labels such as "Power" and "Ethernet." However, these labels maydiffer depending on the model of modem you received in yourinstallation kit.

Step 6 Completethe software installation. Enter your chosen username and password whenprompted. Check your modem to see if the light labeled "DSL" or"Internet" is lit. Open a web browser window to see if your DSL servicehas been successfully installed.

Hi there!. unplug the power plug of your 2wire box from the surge protector for 1minute and after 1 min, plug in directly to the wall outlet, not to the surge protector. try to unplug and replug as well the connection on the back of your 2wirebox and check the cable connection from the isp cable to the modem,, the last option that your going to do is to reset the modem of your modem/router but make sure that you know the settings of your modem and wireless settings if u have.. or contact your isp provide for further details..there is a situation that there is a problem from your dsl company connection, most dsl use telephone lines..

Assuming you have DSL - Verify that you have a DSL filter in the phone line that leads to the base unit of the cordless phone.
Assuming your laptop connection is wireless - See if there is a frequency conflict with your wireless internet and the cordless phone.
If neither of these suggestions help, please reply with specific details regarding your internet connection (Cable/DSL) and the connection of the laptop

If you don't see a phone jack on the back of the computer, it means that you do not have a dial-up modem in the unit.
A DSL line is installed with the cable modem supplied by the DSL company, ie: Bellsouth, AT&T. It connects to your computer via the network port.
The DSL provider supplies the modem and the filters that you need to install on your phone outlets.

Hope this helps.

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